A vacuum temperature fuse, series battery row, parallel battery row and battery pack
A temperature fuse and fusing technology, which is applied to battery pack components, batteries, circuits, etc., can solve the problems of increasing thermal runaway of single cells, achieve small size, increase the risk of thermal runaway, high insulation resistance and withstand voltage Effect
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Embodiment 1
[0064] A thermal fuse is an effective slow-blow protection element. When one of the conductors at the two ends of its electrical connection is overheated, it will conduct to its own heat-sensitive material to thermally fuse, thereby disconnecting the circuit. For overheating protection of circuits and electrical equipment. When thermal runaway occurs in the power battery, high heat will be generated, and the busbars that are electrically connected to its poles will first receive heat spread. However, the existing fuses cannot be used in the thermal protection of groups of new energy power batteries, because the molten metal will flow and the smart terminal is vibrating, which can easily cause the liquid metal to flow to other locations in the battery module. Brings short circuits between normal working batteries, which in turn leads to new and greater safety risks.
[0065] The present embodiment 1 provides a vacuum temperature fuse 1, the specific structure of which makes it...
Embodiment 2
[0119] The second embodiment provides a vacuum temperature fuse 1 , which is different from the first embodiment mainly in the position of the vacuum suction port 101 .
[0120] As a preferred technical solution, the vacuum suction port 101 is located on the lower surface of the first end of the fuse bar 20 .
[0121] according to Figure 7-Figure 8 , the vacuum suction port 101 is located on the lower surface of the fuse bar 20, and the vacuum suction channel 102 is communicated with the fuse bar 20. The vacuum suction channel 102 has a short path, and the fuse bar 20 in the molten state only depends on its own weight and vibration, into the vacuum chamber 30 .
[0122] When the fuse bar 20 starts to change from a non-fuse state to a fuse state, when the second end of the fuse bar 20 does not enter a completely melted state, the fuse bar 20 at the position of the vacuum suction port 101 first directly falls into the vacuum chamber 30 Due to the internal viscosity of the mat...
Embodiment 3
[0127] The vacuum temperature fuse 1 of Example 1 is applied to the series battery row, according to Figure 9 , the embodiment provides a battery row in series, including:
[0128] A plurality of single cells 40, the single cells 40 include a positive pole 401 and a negative pole;
[0129] A plurality of busbars, each including a fusible busbar. The fuse bus bar includes a first conductor 201 electrically connected to the positive pole 401 of the single cell 40, a second conductor 202 electrically connected to the negative pole of the adjacent single cell 40, and the vacuum temperature of Example 1-2 Fuse 1; preferably, the bus bar is electrically connected to the positive pole 401 and the negative pole between the adjacent single cells 40 arranged in the previous sequence, and the negative pole and the positive pole between the single cells 40 arranged in the subsequent order are electrically connected The pole 401; the combination of each first conductor 201, the second c...
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